AirHint found the following cheapest return flights from Guadalajara (GDL) to San Juan (SJU) in June 2026 (see full year).
Return flights
| 26 Jun - 04 Jul | United | ||
| 19 Jun - 26 Jun | United | ||
| 24 Jun - 28 Jun | United | ||
| 12 Jun - 15 Jun | Aeromexico |
Also check the deals for one-way flights from Guadalajara to San Juan in June.
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